noise problem, whine
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=99004
Printed Date: April 28, 2024 at 12:20 PM
Topic: noise problem, whine
Posted By: itsmejaytee
Subject: noise problem, whine
Date Posted: November 14, 2007 at 1:35 PM
Ok i am getting this ridiculously annoying whinnying sound that is only heard with the engine on and gets louder with acceleration. at first i thought it was coming from under the hood but its actually coming through the speakers cause when i turn it off, the noise goes away.
Does anyone have any idea what can cause this?? and how can i fix this?. I am upgrading my signal wires and rca wires as of now to see what it would do. This problem came out of no where. Could it be a bad alternator?
Replies:
Posted By: sarcomax
Date Posted: November 14, 2007 at 4:09 PM
We will need just a little bit more information. What kind of car do you have? What brand and model of radio do you have? If it is a pioneer, did you do a search for pioneer noise on this forum yet? What brand and model of amplifier? What is the amp mounted to? What is the amp grounded to? What gauge wire is being used? Is the power routed down the same side as the signal? Are the gains on the amp set to high? What questions did I forget to ask?
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Posted By: jrod83
Date Posted: November 14, 2007 at 10:38 PM
You can try a ground loop isolator if all the problems sarco said didnt work.....and I dont think you missed any questions sarco...
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MECP Certified
I am the loudest and proudest member of the Fighting Aggies Class of '11 WHOOP!
SAW 'EM OFF!
Posted By: tcss
Date Posted: November 15, 2007 at 12:10 AM
The key point here is the car didn't have the noise at first, "it came out of nowhere". For this reason you have to assume something changed. I would look for a broken or semi unplugged RCA.
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There is no such thing as free installation!
Posted By: itsmejaytee
Date Posted: November 15, 2007 at 11:08 AM
sarcomax wrote:
We will need just a little bit more information. What kind of car do you have? What brand and model of radio do you have? If it is a pioneer, did you do a search for pioneer noise on this forum yet? What brand and model of amplifier? What is the amp mounted to? What is the amp grounded to? What gauge wire is being used? Is the power routed down the same side as the signal? Are the gains on the amp set to high? What questions did I forget to ask?
Ok i am ordering new monster rca wires and im going to redo my wiring the right way, i crimped them down with the female connectors, so now im going to solder them.
i have
Mazda 626 lx
Alpine deck (average)
crunch gp4150 amp for front and rear speakers
volfenhag zx7150 1800w max amp(i think?)
Yes i am running signal wires next to power.
Ground is connected to the vehicle's body.
umm "amp mounted too" ?? uhh volfenhag is mounted on top of my 15" kicker and crunch is mounted underseat. - I am planning to remount the crunch in the trunk using a distributor block.
Another question i have. imagine the whine being rather high pitched and gets louder during acceleration. Would it damage my speakers??!
Posted By: DYohn
Date Posted: November 15, 2007 at 1:22 PM
First, did you see the advice from tcss? Whenever you experience a change like that, something in your system has broken or a connection has been damaged or changed. Troubleshoot all of your connections first as that's easiest. Check RCAs, power and grounds. Second, yes, your alternator could have taken a dump and caused this problem, but much more likely given the brands of amplifiers you've named is one of those is dying. Volfenhag and Crunch are both flea-market quality disposable amps. If they are more than 6 months old it is entierely likely one of them has died. If all your connections and cables are still good, you may need to replace them both (at least go to a shop and get them tested.) ------------- Support the12volt.com
Posted By: hardwarz
Date Posted: November 15, 2007 at 1:46 PM
Whine... goes up and down with accelleration? It's alternator noise. Add ground loop isolators, re-ground your amps, etc. but that might not do it. It might be your alternator's ground to the chassie. Anyone ever get winshield wiper noise or turn signal noise? Same thing, fixing your problem at the source is a better way. Hardwarz
Posted By: sarcomax
Date Posted: November 15, 2007 at 6:00 PM
When you get the new wiring done, let us know if the problem is still there. While you are waiting, you can run a cheap set of rca's from the deck to the amp and see if the noise is still there. If you hook up a full range speaker to the sub amp do you get the whine there too? Crunch amps have never been know for providing the cleanest of signals and have the life expectancy of a rat in a snake pit, so there is a possibility that it is going south. I missed the problem coming out of nowhere part from the original post. sorry bout that, my fingers are quicker than my eyes sometimes.
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Posted By: itsmejaytee
Date Posted: November 15, 2007 at 10:05 PM
Alright thnx for the advice. i shall look into that and get back to u guys with an update on this forum.
Man i wish i know more about car audio. I buy with a budget and i just compare the price and the stats of the product not knowing that the particular brand is garbage. So in the end i am really loosing more money huh lol damnit.
In the future i want to get a pair of Kicker 06S12L7-2 so what are a few good brand and model amps do you guys suggest?
Posted By: jrod83
Date Posted: November 15, 2007 at 10:30 PM
itsmejaytee wrote:
Alright thnx for the advice. i shall look into that and get back to u guys with an update on this forum.
Man i wish i know more about car audio. I buy with a budget and i just compare the price and the stats of the product not knowing that the particular brand is garbage. So in the end i am really loosing more money huh lol damnit.
In the future i want to get a pair of Kicker 06S12L7-2 so what are a few good brand and model amps do you guys suggest?
Have a soldering iron and heatshrink ready for those L7's.....I've had some in the past and i was never satisfied. The little wires always pop off. I eventually just extended the wire and it never happened again. It also happened to everyone i knew who had solobarics ------------- MECP Certified
I am the loudest and proudest member of the Fighting Aggies Class of '11 WHOOP!
SAW 'EM OFF!
Posted By: timechange2007
Date Posted: November 16, 2007 at 12:51 PM
Bad altenator will cause this, have run in to it also on older ford rangers after changing out the engine coil with a cheap one from auto parts store. Also make sure you are running Autolite resistor spark plugs on older vehicles. hope this helps.....
Posted By: tcss
Date Posted: November 16, 2007 at 1:07 PM
Uhhhh, How exactly would resistor spark plugs help alternator whine?
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There is no such thing as free installation!
Posted By: timechange2007
Date Posted: November 17, 2007 at 10:05 AM
Resistor spark plugs have nothing to do with altenator whine, but are significant in the case engine noise feed back through the electrical system, refer back the the initial question posted. Person is asking about engine noise with acceleration, not altenator noise. If he knew that already was the problem he would have probably just replaced the altenator. Later
Posted By: tcss
Date Posted: November 17, 2007 at 11:45 AM
Plug noise is a tick, alternator noise is a WHINE. Replace the alternator? That's where you would go first? If he knew what the problem was why would he be posting here? Maybe you should reread all of the posts on this thread. Replace the alternator, gimme a break. Later
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There is no such thing as free installation!
Posted By: timechange2007
Date Posted: November 17, 2007 at 11:58 AM
Word
Posted By: donpisto
Date Posted: November 17, 2007 at 4:02 PM
itsmejaytee wrote:
Alright thnx for the advice. i shall look into that and get back to u guys with an update on this forum.
Man i wish i know more about car audio. I buy with a budget and i just compare the price and the stats of the product not knowing that the particular brand is garbage. So in the end i am really loosing more money huh lol damnit.
In the future i want to get a pair of Kicker 06S12L7-2 so what are a few good brand and model amps do you guys suggest?
What you are experiencing is alternator whine. Now, some people say you should run your power wire on one side and the RCA's on the other. I personally, have ran them on the same side and never had a problem with alternator whine. Another thing it can be is the RCA's themselves. Cheap RCA's with a thin protective sleeve can cause the alternator whine. I recommend getting Kicker RCA's off eBay. There are others but personally, I would use Kicker RCA's since that it was my power wire is (i'm anal about matching, but then again I prefer to use my own hand-made RCA's).
It could also be a weak ground. Make sure you have a good ground. Use a DMM, set it to measure resistance and anything .3 and below should be fine, but 0 would be best. Also scrape off any paint and make sure you have direct metal to metal contact. I personally use copper lugs rather than the gold plated, platinum plated, etc ring terminals.
As for what other products to consider besides Kicker, well, it all depends. What are you going for? You want loud as in insanely loud? Do you want something that gets pretty loud and sounds clean and accurate? What is your budget? There are many things to consider. Though I'm a fan of Kicker wiring, that is all I'll stand behind.
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